kubectl run etcd-client --restart="Never" -n dns-system --image docker.io/bitnami/etcd:3.5.21-debian-12-r0 --env ETCDCTL_ENDPOINTS="etcd-extdns:2379" --command -- sleep
infinity
kubectl exec -it etcd-client -n dns-system -- /bin/bash


dig @10.11.130.102 nue.e.lntu.edu.cn
